Privacy Policy
How we protect your data and privacy
What We Collect
We collect very little information:
- Sleep times you enter in the calculator
- Basic device info to make the site work better
- Email if you contact us
How We Use It
- Calculate your sleep recommendations
- Improve our calculator
- Reply to your messages
Data Security
Your sleep data stays in your browser. We don't store your personal sleep information on our servers. All data is encrypted and secure.
Cookies
We use simple cookies to:
- Make the site work properly
- Remember your language choice
- Understand how people use our sleep calculator
Your Rights
You can ask us to delete any information we have about you. Just send us an email.
Privacy Summary
Simple privacy protection
🔒 Secure
All data is encrypted and safe
🚫 No Tracking
We don't track your personal activity
💾 Local Storage
Sleep data stays in your browser
📧 Contact Only
We only get your email if you contact us
🗑️ Easy Deletion
Ask us to delete your data anytime
Last updated: June 2026